Patents Assigned to Compagnie Industrielle de la Matiere Vegetale
  • Patent number: 10160823
    Abstract: A lignin-phenol-formaldehyde resin, which is obtained by polycondensation of formaldehyde, phenol and lignin in the presence of a basic or acidic catalyst, is characterized in that the lignin is a lignin that is not chemically modified at the available functional groups. This lignin has a low molecular mass and includes available functional groups chosen from the group including aliphatic hydroxyls and phenolic hydroxyls. The degree of substitution by weight of phenol with the lignin is between 50% and 60%. The weight proportion of the lignin and of phenol in the resin is equal to the weight proportion of phenol in a lignin-free phenol-formaldehyde (PF) resin.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: December 25, 2018
    Assignee: COMPAGNIE INDUSTRIELLE DE LA MATIERE VEGETALE-CIMV
    Inventors: Michel Delmas, Bouchra Benjelloun Mlayah
  • Patent number: 9580588
    Abstract: A method for the mechanical reinforcement of elastomer polymers, of a chemically unmodified lignin with available functional groups which has a specific surface area of between 0.5 m2/g and 5 m2/g, and preferably between 1 m2/g and 2.5 m2/g. Also an elastomer thus reinforced, in particular without carbon black.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: February 28, 2017
    Assignee: COMPAGNIE INDUSTRIELLE DE LA MATIERE VEGETALE
    Inventors: Bouchra Benjelloun Mlayah, Michel Delmas
  • Publication number: 20130183733
    Abstract: A process for producing bioethanol includes the steps of pretreatment (consisting in destructuring the lignocellulosic vegetable raw material by placing it in the presence of a mixture containing formic acid, acetic acid and water, then in separating cellulose), of enzymatic hydrolysis and of alcoholic fermentation, characterized in that it includes, prior to the enzymatic hydrolysis, a step of partial elimination of the lignins so as to obtain a residual overall level of lignins (T), expressed as percentage by weight, which is non-zero and which is included in a range determined by a lower limit, and an upper limit Bsup, respectively equal to 0.30% and 4%. In order to obtain conditions of acidification before the enzymatic hydrolysis step, the process includes a step for re-acidification of the mixture, which is carried out with an acid, or of a mixture of acids, of determined pKa, and preferably with weak organic.
    Type: Application
    Filed: October 5, 2011
    Publication date: July 18, 2013
    Applicant: COMPAGNIE INDUSTRIELLE DE LA MATIERE VEGETALE-CIMV
    Inventors: Michel Delmas, Bouchra Benjelloun Mlayah
  • Patent number: 8157964
    Abstract: The invention proposes an installation (10) in which the impregnation and fractionation of the raw material (MP) are conducted at atmospheric pressure, characterized in that it comprises means (18, 20) for transferring the raw material (MP) successively to a first treatment station (PT1) and a second treatment station (PT2), each comprising means (G1, G2) for temporarily combining, at the first station (PT1), the raw material (MP) with a quantity of a first mixture of organic acids and, at the second station (PT2), for temporarily combining the raw material (MP) with a quantity of a second mixture; and means, after impregnation, for at least partially recovering the quantity of second mixture after impregnation and for recycling at least a portion of the second recovered mixture to form at least partially said first impregnation mixture used at the first station (PT1).
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: April 17, 2012
    Assignee: Compagnie Industrielle de la Matiere Vegetale
    Inventors: Bouchra Benjelloun Mlayah, Michel Delmas, Gérard Avignon
  • Publication number: 20110105737
    Abstract: A method for pretreating plant starting material for the purpose of producing bioethanol and/or sugar via a common chamber (12), is characterized in that: —during one period, the plant material (MP), introduced into the common pretreatment chamber, is a lignocellulosic plant starting material, whose pretreatment is aimed at separating the cellulose, the hemicelluloses and the lignins so as to obtain a pretreated plant material that can be hydrolyzed and fermented for the production of bioethanol; —during another period, the plant material (MP), introduced into the common pretreatment chamber, is a sacchariferous plant starting material, whose pretreatment is aimed at extracting therefrom, by diffusion, a sugar juice for the production of sugar and/or of bioethanol.
    Type: Application
    Filed: June 3, 2009
    Publication date: May 5, 2011
    Applicant: COMPAGNIE INDUSTRIELLE DE LA MATIERE VEGETALE-CIMV
    Inventors: Bouchra Benjelloun Mlayah, Michel Delmas, Gérard Levasseur, Thierry Scholastique
  • Publication number: 20100285553
    Abstract: A process for pretreating a lignocellulosic plant raw material in order to obtain a pretreated material that is capable of being hydrolyzed and fermented for the production of bioethanol, includes the following successive steps: (i) destructuring the lignocellulosic plant raw material by placing it in the presence of a mixture containing formic acid and water, at a reaction temperature between 95° C. and 110° C.; (ii) then, at atmospheric pressure and prior to any hydrolysis then fermentation action, separating: on the one hand, the solid phase, mainly composed of the cellulose, constituting a first co-substrate, capable of then being hydrolyzed and fermented for the production of bioethanol; and on the other hand, the liquid phase, containing, in particular in aqueous solution, the formic acid, the lignins, and the hemicelluloses, constituting a second co-substrate, capable of then being hydrolyzed and fermented for the production of bioethanol.
    Type: Application
    Filed: January 22, 2009
    Publication date: November 11, 2010
    Applicant: COMPAGNIE INDUSTRIELLE DE LA MATIERE VEGETALE CIMV
    Inventors: Michel Delmas, Bouchra Benjelloun Mlayah
  • Patent number: 7402224
    Abstract: A method for producing paper pulp from a lignocellulosie vegetable raw material. The method includes contacting the raw material with a mixture of formic acid and acetic acid (in an amount more than 5 wt. % of the mixture) at a temperature and for a suitable reaction time, the whole being performed at room temperature. The paper pulp is separated from the organic phase and optionally bleached with ozone. The organic phase is treated to enable the recycling of the formic and acetic acids and the extraction of lignins, sugars and excess acetic acid.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: July 22, 2008
    Assignee: Compagnie Industrielle de la Matiere Vegetale
    Inventors: Gérard Avignon, Michel Delmas
  • Patent number: 6866749
    Abstract: The invention concerns a method for bleaching different types of paper pulp in two steps at atmospheric pressure and at a temperature not higher than 100 DEG C. The first step consists in contacting the unbleached paste with a mixture of paracetic acid and performic acid. The second step consists in treating the bleached pulp derived from the first step, with a solution of soda and hydrogen peroxide. The resulting pulps exhibit a high index of whiteness and a degree of polymerisation close to unbleached pulps. The method is environmentally safe and non-polluting.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: March 15, 2005
    Assignee: Compagnie Industrielle de la Matiere Vegetale
    Inventors: Michel Delmas, Gérard Avignon